Deux-Montagnes's 2026 scale
| Portion of the taxable base | Rate |
|---|
| up to $62,900 | 0.5% |
| $62,900 – $315,000 | 1.0% |
| $315,000 – $500,000 | 1.5% |
| over $500,000 | 3.0% |
A few examples
| Price paid | Transfer duty |
|---|
| $400,000 | $4,111 |
| $600,000 | $8,611 |
| $900,000 | $17,611 |
The taxable base is the highest of the price paid, the consideration stated in the deed, or the assessment roll value multiplied by the 1.12 comparative factor for 2026. In Deux-Montagnes that factor above 1 can push the base above the price paid — a common surprise at the notary.
How it compares with Montreal
On a $600,000 purchase, Deux-Montagnes charges $8,611 —
$1,262 more than Montreal. The municipal rate rises above the provincial scale from $500,000 up. On top of that sits the 1.12 comparative factor: a $600,000 assessment lifts the base to $672,000. The same brackets apply in
Terrebonne,
Repentigny,
Mascouche and
Mirabel, among 4 other municipalities in the area.